Dam construction



May 26, 1931. o. WARTEMANN DAM CONSTRUCTION Filed June 1, 1928 OscarVVarZ'emm v IN VENTOR ATTORNEY" Patented May 26, 1931 l H UNITEDSTATES PATENT OFFICE OSCAR WARTEMANN, OF COLLEGE POINT, NEW YORK, N. Y.

DAM CONSTRUCTION Application filecl June 1, 1928. Serial No. 282,060.

This invention-relates to improvements in form roadways over which vehicles may conco c t d n t ti 'veniently pass, each wall providing for one My invention has for its ob ect to lncrease Way traific. the efficiency of reenforced concrete struc- Having now described the nature of my 5 tures of this character and I accomplish this invention and the manner in which the same object by constructing two or more spaced may be utilized, what I claim as new and deparallel straight or arched walls with consire to secure by Letters Patent is: necting integral transverse walls. A dam comprlsing a pair of concentric One embodiment of my invention is illusarc-shaped Walls disposed with their bulge 10 tratively exemplified in the accompanying 1n the upstream direction, each wall having drawin i hi h, a cross section tapering from the base to- Figm-e 1 is a l i f d com wards the top, and V-shaped transverse walls structed in accordance with my invention; gral at thelr aplces and base ends, re-

Figure 2 is a transverse sectional view of pec ive y, W th the opposed faces of the two 13 the same taken on the lines Q -Q, of Figure 1; walls, the arms of the said transverse walls Figure 3 is a plan view of a similarly conbelng p e a an a g t t e adi of structed dam utilizing slightly modified cone curve of the archedwalls and having the ti 11 portions at the apices inclined 1n the direc- R f i t th d i 10 d 11 1 tlon of the inner face of the upstream wall. 28 t respectively th Outer d inner ll In testlmony whereof I afliX my signature. of my improved dam, each wall comprising OSCAR WARTEMANN. an arched reenforced concrete structure tapering towards the upper end, as illustrated in Figure 2. The ends of the walls 10 and 11 are suitably anchored in the embankments on the sides of the dam. The two walls 10 and 11 are further arranged with their bilge towards the body of water being retained and to increase their strength and to unite 3 their combined resistance, transverse reenforced concrete walls 12 are disposed between I the two walls. These transverse walls 12 are arranged so as to be disposed at an angle to the radii of the curve of the walls 10 and 11, as illustratively exemplified in Figures 1 and 2, or the transverse walls l2 may be arranged coincident with the radii of the two walls.

It might be mentioned in connection with 40 a concrete dam construction such as that forming the subject matterof this applicaion, that the outer wall 10 is virtually the protecting or safety dam while the inner Wall 11 constitutes the main dam by means of which the waters are initially retained. It is contemplated further that the cells 13 formed by the two walls 10 and 11 and the transverse walls 12 may be filled with earth and properly sodded while the upper faces 50 of the two'walls are curbed and paved to 

